From Elizabeth Elliott (Keep A Quiet Heart):
A young woman came in great perplexity to a Scottish preacher, asking how she could resolve the question of her own desires when they seemed to be in such contradiction to the will of God. He took a slip of paper, wrote two words on it, handed it to her with the request that she sit down for ten minutes, ponder the words, cross out one of them, and bring the slip back to him. She sat down and read: No Lord. Which to cross out? It did not take her long to see that if she was saying No she could not say Lord, and if she wanted to call Him Lord, she could not say No.
That woman is a laser.